问Bootstrap Dual Listbox发送

EN

{!! Form::open(['class'=>'form-horizontal','role'=>'form']) !!}
    <select multiple="multiple" size="10" name="facturas[]" id="selectfacturas">
        @foreach($facturas as $factura)
            <option value="{{ $factura->id }}"{{ ( $factura->ordendepago_id==$op->id ? ' selected="selected"':'') }}>{{ $factura->descripcionLinda() }}</option>
        @endforeach
    </select>
    <script>
        var demo2 = $('#selectfacturas').bootstrapDualListbox({
          nonSelectedListLabel: 'Comprobantes disponibles',
          selectedListLabel: 'Comprobantes imputados a esta orden',
          preserveSelectionOnMove: 'moved',
          moveOnSelect: false,
          showFilterInputs: false,
        });
    </script>
    {!!Form::submit( 'Siguiente',array('class'=>'btn btn-primary','id'=>'btn-submit'))!!}
    {!!Form::close()!!}   

public function selefacturasPost( $id ) {
    dd( \Input::All()  );

    array:2 [▼
  "_token" => "YTlypLsDjO37GGTAHXcKcKfho1vKYx5c0xgDN1cM"
  "facturas" => array:2 [▶]
]

<-- HTML: -->

<form action="your_php_file.php" method="post" id="your-dual-listbox-form">
	<select multiple="multiple" size="10" name="duallistbox" id="initializeDuallistbox">
					<option value="option1">Option 1</option>
					<option value="option2">Option 2</option>
					<option value="option3" selected="selected">Option 3</option>
					...
					<option value="option20" selected="selected">Option 20</option>
	</select>
	<input type="hidden" name="DataFromRightSideList" value="null" id="setState">
	<button type="submit" class="btn btn-primary">Save</button>
</form>

<-- jQuery: -->

<script type="text/javascript">

$('#your-dual-listbox-form').submit(function() {
		var formData = $('[name="duallistbox"]').val(); //this will get as a string values from the right side Your dual listbox
		$(function () {
				$('#setState').val(formData); //this will change value of input id="setState"
		});
		$( '#your-dual-listbox-form' ).submit(); //and here submit your form
		return false;
	});
</script>

<-- PHP: -->

<?php
echo $_POST['DataFromRightSideList']; //it will print something like "option 3, ..., option20"
?>